package System.book;

/**
 * 书架
 */

public class BookList {

    private Book[] books = new Book[10]; //书架容量

    private int usedSize;

    public BookList(){
        books[0] = new Book("三国演义","罗贯中",90,"小说");
        books[1] = new Book("西游记","吴承恩",78,"小说");
        books[2] = new Book("红楼梦","曹雪芹",89,"小说");

        this.usedSize=3;
    }

    /**
     * 获取当前数组当中元素的个数
     * @return
     */
    public int getUsedSize() {
        return usedSize;
    }

    /**
     * 修改当前数组当中元素的个数
     * @param usedSize
     */
    public void setUsedSize(int usedSize) {
        this.usedSize = usedSize;
    }

    //可以在这写所有关于数组的操作  借书 还书  ---

    /**
     * 获取pos下标的书
     * @param pos
     * @return
     */
    public Book getPos(int pos){

        return books[pos];

    }

    /**
     * 给数组pos下标 放一本书
     * @param pos
     * @param book
     */
    public void setBooks(int pos,Book book){

        books[pos] = book;
    }
}
